<template>
  <div class="wrapper">
    <!-- header部分 -->
    <header>
      <div class="icon-location-box">
        <div class="icon-location"></div>
      </div>
      <div class="location-text">沈阳市规划大厦<i class="fa fa-caret-down"></i></div>
    </header>
    <!-- search部分 -->
    <div class="search">
      <div class="search-fixed-top" ref="fixedBox">
        <div class="search-box">
          <i class="fa fa-search"></i>搜索饿了么商家、商品名称
        </div>
      </div>
    </div>
 <!-- 点餐分类部分 -->
 <ul class="foodtype">
            <li @click="toBusinessList(1)">
                <img src="../assets/dcfl01.png">
                <p>美食</p>
            </li>
            <li @click="toBusinessList(2)">
                <img src="../assets/dcfl02.png">
                <p>早餐</p>
            </li>
            <li @click="toBusinessList(3)">
                <img src="../assets/dcfl03.png">
                <p>跑腿代购</p>
            </li>
            <li @click="toBusinessList(4)">
                <img src="../assets/dcfl04.png">
                <p>汉堡披萨</p>
            </li>
            <li @click="toBusinessList(5)">
                <img src="../assets/dcfl05.png">
                <p>甜品饮品</p>
            </li>
            <li @click="toBusinessList(6)">
                <img src="../assets/dcfl06.png">
                <p>速食简餐</p>
            </li>
            <li @click="toBusinessList(7)">
                <img src="../assets/dcfl07.png">
                <p>地方小吃</p>
            </li>
            <li @click="toBusinessList(8)">
                <img src="../assets/dcfl08.png">
                <p>米粉面馆</p>
            </li>
            <li @click="toBusinessList(9)">
                <img src="../assets/dcfl09.png">
                <p>包子粥铺</p>
            </li>
            <li @click="toBusinessList(10)">
                <img src="../assets/dcfl10.png">
                <p>炸鸡炸串</p>
            </li>
        </ul>
 
        <!-- 横幅广告部分（注意：此处有背景图片） -->
        <div class="banner">
            <h3>品质套餐</h3>
            <p>搭配齐全吃得好</p>
            <a>立即抢购 &gt;</a>
        </div>
 
        <!-- 超级会员部分 -->
        <div class="supermember">
            <div class="left">
                <img src="../assets/super_member.png">
                <h3>超级会员</h3>
                <p>&#8226; 每月享超值权益</p>
            </div>
            <div class="right">
                立即开通 &gt;
            </div>
        </div>
 
        <!-- 推荐商家部分 -->
        <div class="recommend">
            <div class="recommend-line"></div>
            <p>推荐商家</p>
            <div class="recommend-line"></div>
        </div>
 
        <!-- 推荐方式部分 -->
        <ul class="recommendtype">
            <li>综合排序<i class="fa fa-caret-down"></i></li>
            <li>距离最近</li>
            <li>销量最高</li>
            <li>筛选<i class="fa fa-filter"></i></li>
        </ul>
 
        <!-- 推荐商家列表部分 -->
        <ul class="business">
            <li>
                <img src="../assets/sj01.png">
                <div class="business-info">
                    <div class="business-info-h">
                        <h3>万家饺子（软件园E18店）</h3>
                        <div class="business-info-like">&#8226;</div>
                    </div>
                    <div class="business-info-star">
                        <div class="business-info-star-left">
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <p>4.9 月售345单</p>
                        </div>
                        <div class="business-info-star-right">
                            蜂鸟专送
                        </div>
                    </div>
                    <div class="business-info-delivery">
                        <p>&#165;15起送 | &#165;3配送</p>
                        <p>3.22km | 30分钟</p>
                    </div>
                    <div class="business-info-explain">
                        <div>各种饺子</div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">新</div>
                            <p>饿了么新用户首单立减9元</p>
                        </div>
                        <div class="business-info-promotion-right">
                            <p>2个活动</p>
                            <i class="fa fa-caret-down"></i>
                        </div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon" style="background
color: #F1884F;">特</div>
                            <p>特价商品5元起</p>
                        </div>
                    </div>
                </div>
            </li>
            <li>
                <img src="../assets/sj02.png">
                <div class="business-info">
                    <div class="business-info-h">
                        <h3>小锅饭豆腐馆（全运店）</h3>
                        <div class="business-info-like">&#8226;</div>
                    </div>
                    <div class="business-info-star">
                        <div class="business-info-star-left">
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <p>4.9 月售345单</p>
                        </div>
                        <div class="business-info-star-right">
                            蜂鸟专送
                        </div>
                    </div>
                    <div class="business-info-delivery">
                        <p>&#165;15起送 | &#165;3配送</p>
                        <p>3.22km | 30分钟</p>
                    </div>
                    <div class="business-info-explain">
                        <div>各种饺子</div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">新</div>
                            <p>饿了么新用户首单立减9元</p>
                        </div>
                        <div class="business-info-promotion-right">
                            <p>2个活动</p>
                            <i class="fa fa-caret-down"></i>
                        </div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">特</div>
                            <p>特价商品5元起</p>
                        </div>
                    </div>
                </div>
            </li>
            <li>
                <img src="../assets/sj03.png">
                <div class="business-info">
                    <div class="business-info-h">
                        <h3>麦当劳麦乐送（全运路店）</h3>
                        <div class="business-info-like">&#8226;</div>
                    </div>
                    <div class="business-info-star">
                        <div class="business-info-star-left">
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <p>4.9 月售345单</p>
                        </div>
                        <div class="business-info-star-right">
                            蜂鸟专送
                        </div>
                    </div>
                    <div class="business-info-delivery">
                        <p>&#165;15起送 | &#165;3配送</p>
                        <p>3.22km | 30分钟</p>
                    </div>
                    <div class="business-info-explain">
                        <div>各种饺子</div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">新</div>
                            <p>饿了么新用户首单立减9元</p>
                        </div>
                        <div class="business-info-promotion-right">
                            <p>2个活动</p>
                            <i class="fa fa-caret-down"></i>
                        </div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">特</div>
                            <p>特价商品5元起</p>
                        </div>
                    </div>
                </div>
            </li>
            <li>
                <img src="../assets/sj04.png">
                <div class="business-info">
                    <div class="business-info-h">
                        <h3>米村拌饭（浑南店）</h3>
                        <div class="business-info-like">&#8226;</div>
                    </div>
                    <div class="business-info-star">
                        <div class="business-info-star-left">
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <p>4.9 月售345单</p>
                        </div>
                        <div class="business-info-star-right">
                            蜂鸟专送
                        </div>
                    </div>
                    <div class="business-info-delivery">
                        <p>&#165;15起送 | &#165;3配送</p>
                        <p>3.22km | 30分钟</p>
                    </div>
                    <div class="business-info-explain">
                        <div>各种饺子</div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">新</div>
                            <p>饿了么新用户首单立减9元</p>
                        </div>
                        <div class="business-info-promotion-right">
                            <p>2个活动</p>
                            <i class="fa fa-caret-down"></i>
                        </div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">特</div>
                            <p>特价商品5元起</p>
                        </div>
                    </div>
                </div>
            </li>
            <li>
                <img src="../assets/sj05.png">
                <div class="business-info">
                    <div class="business-info-h">
                        <h3>申记串道（中海康城店）</h3>
                        <div class="business-info-like">&#8226;</div>
                    </div>
                    <div class="business-info-star">
                        <div class="business-info-star-left">
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <i class="fa fa-star"></i>
                            <p>4.9 月售345单</p>
                        </div>
                        <div class="business-info-star-right">
                            蜂鸟专送
                        </div>
                    </div>
                    <div class="business-info-delivery">
                        <p>&#165;15起送 | &#165;3配送</p>
                        <p>3.22km | 30分钟</p>
                    </div>
                    <div class="business-info-explain">
                        <div>各种饺子</div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">新</div>
                            <p>饿了么新用户首单立减9元</p>
                        </div>
                        <div class="business-info-promotion-right">
                            <p>2个活动</p>
                            <i class="fa fa-caret-down"></i>
                        </div>
                    </div>
                    <div class="business-info-promotion">
                        <div class="business-info-promotion-left">
                            <div class="business-info-promotion-left-incon">特</div>
                            <p>特价商品5元起</p>
                        </div>
                    </div>
                </div>
            </li>
        </ul>
 
        <!-- 底部菜单部分 -->
        <Footer></Footer>
          </div>
        </template>
        
        <script>
        import Footer from '../components/Footer.vue';
        export default {
          name: 'Index',
          mounted() {
            // 确保 DOM 渲染完成后再获取 refs
            this.$nextTick(() => {
              const search = this.$refs.fixedBox;
              if (search) {
                window.addEventListener('scroll', this.handleScroll);
              }
            });
          },
          beforeUnmount() {
            // 组件销毁前移除滚动事件监听
            window.removeEventListener('scroll', this.handleScroll);
          },
          components: {
            Footer
          },
          methods: {
            handleScroll() {
              const search = this.$refs.fixedBox;
              if (!search) return;
              let s1 = document.documentElement.scrollTop;
              let s2 = document.body.scrollTop;
              let scroll = s1 === 0 ? s2 : s1;
              let width = document.documentElement.clientWidth;
              if (scroll > width * 0.12) {
                search.style.position = 'fixed';
                search.style.left = '0';
                search.style.top = '0';
              } else {
                search.style.position = 'static';
              }
            },
            toBusinessList(orderTypeId) {
              this.$router.push({ path: '/businessList', query: { orderTypeId: orderTypeId } });
            }
          }
        }
        </script>
 
<style scoped>
    /****************** 总容器 ******************/
    .wrapper {
        width: 100%;
        height: 100%;
    }
 
    /****************** header ******************/
    .wrapper header {
        width: 100%;
        height: 12vw;
        background-color: #0097FF;
 
        display: flex;
        align-items: center;
    }
 
    .wrapper header .icon-location-box {
        width: 3.5vw;
        height: 3.5vw;
        margin: 0 1vw 0 3vw;
    }
 
    .wrapper header .location-text {
        font-size: 4.5vw;
        font-weight: 700;
        color: #fff;
    }
 
    .wrapper header .location-text .fa-caret-down {
        margin-left: 1vw;
    }
 
    /****************** search ******************/
    .wrapper .search {
        width: 100%;
        height: 13vw;
    }
 
    .wrapper .search .search-fixed-top {
        width: 100%;
        height: 13vw;
        background-color: #0097FF;
        display: flex;
        justify-content: center;
        align-items: center;
    }
 
    .wrapper .search .search-fixed-top .search-box {
        width: 90%;
        height: 9vw;
        background-color: #fff;
        border-radius: 2px;
 
        display: flex;
        justify-content: center;
        align-items: center;
 
        font-size: 3.5vw;
        color: #AEAEAE;
        font-family: "宋体";
        /*此样式是让文本选中状态无效*/
        user-select: none;
    }
 
    .wrapper .search .search-fixed-top .search-box .fa-search {
        margin-right: 1vw;
    }
 
    /****************** 点餐分类部分 ******************/
    .wrapper .foodtype {
        width: 100%;
        height: 48vw;
 
        display: flex;
        flex-wrap: wrap;
        justify-content: space-around;
        /*要使用align-content。10个子元素将自动换行为两行，而且两行作为一个整体垂直居中*/
        align-content: center;
    }
 
    .wrapper .foodtype li {
        /*一共10个子元素，通过计算，子元素宽度在16.7 ~ 20 之间，才能保证换两行*/
        width: 18vw;
        height: 20vw;
 
        display: flex;
        /*弹性盒子主轴方向设为column，然后仍然是垂直水平方向居中*/
        flex-direction: column;
        justify-content: center;
        align-items: center;
 
        user-select: none;
        cursor: pointer;
    }
 
    .wrapper .foodtype li img {
        width: 12vw;
        /*视频讲解时高度设置为12vw，实际上设置为10.3vw更佳*/
        height: 10.3vw;
    }
 
    .wrapper .foodtype li p {
        font-size: 3.2vw;
        color: #666;
    }
 
    /****************** 横幅广告部分 ******************/
    .wrapper .banner {
        /**
         * 设置容器宽度95%，然后水平居中，这样两边留白; 
         * 这里不能用padding，因为背景图片也会覆盖padding
         */
        width: 95%;
        margin: 0 auto;
        height: 29vw;
 
        /*此三个样式组合，可以保证背景图片充满整个容器*/
        background-image: url(../assets/index_banner.png);
        background-repeat: no-repeat;
        background-size: cover;
 
        box-sizing: border-box;
        padding: 2vw 6vw;
    }
 
    .wrapper .banner h3 {
        font-size: 4.2vw;
        margin-bottom: 1.2vw;
    }
 
    .wrapper .banner p {
        font-size: 3.4vw;
        color: #666;
        margin-bottom: 2.4vw;
    }
 
    .wrapper .banner a {
        font-size: 3vw;
        color: #C79060;
        font-weight: 700;
    }
 
    /****************** 超级会员部分 ******************/
    .wrapper .supermember {
        /*这里也设置容器宽度95%，不能用padding，因为背景色也会充满padding*/
        width: 95%;
        margin: 0 auto;
        height: 11.5vw;
        background-color: #FEEDC1;
        margin-top: 1.3vw;
        border-radius: 2px;
        color: #644F1B;
 
        display: flex;
        justify-content: space-between;
        align-items: center;
    }
 
    .wrapper .supermember .left {
        display: flex;
        align-items: center;
        margin-left: 4vw;
        user-select: none;
    }
 
    .wrapper .supermember .left img {
        width: 6vw;
        height: 6vw;
        margin-right: 2vw;
    }
 
    .wrapper .supermember .left h3 {
        font-size: 4vw;
        margin-right: 2vw;
    }
 
    .wrapper .supermember .left p {
        font-size: 3vw;
    }
 
    .wrapper .supermember .right {
        font-size: 3vw;
        margin-right: 4vw;
        cursor: pointer;
    }
 
    /****************** 推荐商家部分 ******************/
    .wrapper .recommend {
        width: 100%;
        height: 14vw;
        display: flex;
        justify-content: center;
        align-items: center;
    }
 
    .wrapper .recommend .recommend-line {
        width: 6vw;
        height: 0.2vw;
        background-color: #888;
    }
 
    .wrapper .recommend p {
        font-size: 4vw;
        margin: 0 4vw;
    }
 
    /****************** 推荐方式部分 ******************/
    .wrapper .recommendtype {
        width: 100%;
        height: 5vw;
        margin-bottom: 5vw;
 
        display: flex;
        justify-content: space-around;
        align-items: center;
    }
 
    .wrapper .recommendtype li {
        font-size: 3.5vw;
        color: #555;
    }
 
    /****************** 推荐商家列表部分 ******************/
    .wrapper .business {
        width: 100%;
        margin-bottom: 14vw;
    }
 
    .wrapper .business li {
        width: 100%;
        box-sizing: border-box;
        padding: 2.5vw;
        user-select: none;
        border-bottom: solid 1px #DDD;
 
        display: flex;
    }
 
    .wrapper .business li img {
        width: 18vw;
        height: 18vw;
    }
 
    .wrapper .business li .business-info {
        width: 100%;
        box-sizing: border-box;
        padding-left: 3vw;
    }
 
    .wrapper .business li .business-info .business-info-h {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 2vw;
    }
 
    .wrapper .business li .business-info .business-info-h h3 {
        font-size: 4vw;
        color: #333;
    }
 
    .wrapper .business li .business-info .business-info-h .business-info-like {
        width: 1.6vw;
        height: 3.4vw;
        background-color: #666;
        color: #fff;
        font-size: 4vw;
        margin-right: 4vw;
 
        display: flex;
        justify-content: center;
        align-items: center;
    }
 
    .wrapper .business li .business-info .business-info-star {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 2vw;
        font-size: 3.1vw;
    }
 
    .wrapper .business li .business-info .business-info-star .business-info-star-left {
        display: flex;
        align-items: center;
    }
 
    .wrapper .business li .business-info .business-info-star .business-info-star-left .fa-star {
        color: #FEC80E;
        margin-right: 0.5vw;
    }
 
    .wrapper .business li .business-info .business-info-star .business-info-star-left p {
        color: #666;
        margin-left: 1vw;
    }
 
    .wrapper .business li .business-info .business-info-star .business-info-star-right {
        background-color: #0097FF;
        color: #fff;
        font-size: 2.4vw;
        border-radius: 2px;
        padding: 0 0.6vw;
    }
 
    .wrapper .business li .business-info .business-info-delivery {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 2vw;
 
        color: #666;
        font-size: 3.1vw;
    }
 
    .wrapper .business li .business-info .business-info-explain {
        display: flex;
        align-items: center;
        margin-bottom: 3vw;
    }
 
    .wrapper .business li .business-info .business-info-explain div {
        border: solid 1px #DDD;
        font-size: 2.8vw;
        color: #666;
        border-radius: 3px;
        padding: 0 0.1vw;
    }
 
    .wrapper .business li .business-info .business-info-promotion {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 1.8vw;
 
    }
 
    .wrapper .business li .business-info .business-info-promotion .business-info-promotion-left 
{
        display: flex;
        align-items: center;
    }
 
    .wrapper .business li .business-info .business-info-promotion .business-info-promotion-left 
.business-info-promotion-left-incon {
        width: 4vw;
        height: 4vw;
        background-color: #70BC46;
        border-radius: 3px;
        font-size: 3vw;
        color: #fff;
 
        display: flex;
        justify-content: center;
        align-items: center;
    }
 
    .wrapper .business li .business-info .business-info-promotion .business-info-promotion-left 
p {
        color: #666;
        font-size: 3vw;
        margin-left: 2vw;
    }
 
    .wrapper .business li .business-info .business-info-promotion .business-info-promotion-right 
{
        display: flex;
        align-items: center;
        font-size: 2.5vw;
        color: #999;
    }
 
    .wrapper .business li .business-info .business-info-promotion .business-info-promotion-right 
p {
        margin-right: 2vw;
    }
 </style>